<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/arch/m68k/kernel, branch linux-5.0.y</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>Remove 'type' argument from access_ok() function</title>
<updated>2019-01-04T02:57:57+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2019-01-04T02:57:57+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=96d4f267e40f9509e8a66e2b39e8b95655617693'/>
<id>96d4f267e40f9509e8a66e2b39e8b95655617693</id>
<content type='text'>
Nobody has actually used the type (VERIFY_READ vs VERIFY_WRITE) argument
of the user address range verification function since we got rid of the
old racy i386-only code to walk page tables by hand.

It existed because the original 80386 would not honor the write protect
bit when in kernel mode, so you had to do COW by hand before doing any
user access.  But we haven't supported that in a long time, and these
days the 'type' argument is a purely historical artifact.

A discussion about extending 'user_access_begin()' to do the range
checking resulted this patch, because there is no way we're going to
move the old VERIFY_xyz interface to that model.  And it's best done at
the end of the merge window when I've done most of my merges, so let's
just get this done once and for all.

This patch was mostly done with a sed-script, with manual fix-ups for
the cases that weren't of the trivial 'access_ok(VERIFY_xyz' form.

There were a couple of notable cases:

 - csky still had the old "verify_area()" name as an alias.

 - the iter_iov code had magical hardcoded knowledge of the actual
   values of VERIFY_{READ,WRITE} (not that they mattered, since nothing
   really used it)

 - microblaze used the type argument for a debug printout

but other than those oddities this should be a total no-op patch.

I tried to fix up all architectures, did fairly extensive grepping for
access_ok() uses, and the changes are trivial, but I may have missed
something.  Any missed conversion should be trivially fixable, though.

Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Nobody has actually used the type (VERIFY_READ vs VERIFY_WRITE) argument
of the user address range verification function since we got rid of the
old racy i386-only code to walk page tables by hand.

It existed because the original 80386 would not honor the write protect
bit when in kernel mode, so you had to do COW by hand before doing any
user access.  But we haven't supported that in a long time, and these
days the 'type' argument is a purely historical artifact.

A discussion about extending 'user_access_begin()' to do the range
checking resulted this patch, because there is no way we're going to
move the old VERIFY_xyz interface to that model.  And it's best done at
the end of the merge window when I've done most of my merges, so let's
just get this done once and for all.

This patch was mostly done with a sed-script, with manual fix-ups for
the cases that weren't of the trivial 'access_ok(VERIFY_xyz' form.

There were a couple of notable cases:

 - csky still had the old "verify_area()" name as an alias.

 - the iter_iov code had magical hardcoded knowledge of the actual
   values of VERIFY_{READ,WRITE} (not that they mattered, since nothing
   really used it)

 - microblaze used the type argument for a debug printout

but other than those oddities this should be a total no-op patch.

I tried to fix up all architectures, did fairly extensive grepping for
access_ok() uses, and the changes are trivial, but I may have missed
something.  Any missed conversion should be trivially fixable, though.

Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping</title>
<updated>2018-12-28T22:12:21+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2018-12-28T22:12:21+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=af7ddd8a627c62a835524b3f5b471edbbbcce025'/>
<id>af7ddd8a627c62a835524b3f5b471edbbbcce025</id>
<content type='text'>
Pull DMA mapping updates from Christoph Hellwig:
 "A huge update this time, but a lot of that is just consolidating or
  removing code:

   - provide a common DMA_MAPPING_ERROR definition and avoid indirect
     calls for dma_map_* error checking

   - use direct calls for the DMA direct mapping case, avoiding huge
     retpoline overhead for high performance workloads

   - merge the swiotlb dma_map_ops into dma-direct

   - provide a generic remapping DMA consistent allocator for
     architectures that have devices that perform DMA that is not cache
     coherent. Based on the existing arm64 implementation and also used
     for csky now.

   - improve the dma-debug infrastructure, including dynamic allocation
     of entries (Robin Murphy)

   - default to providing chaining scatterlist everywhere, with opt-outs
     for the few architectures (alpha, parisc, most arm32 variants) that
     can't cope with it

   - misc sparc32 dma-related cleanups

   - remove the dma_mark_clean arch hook used by swiotlb on ia64 and
     replace it with the generic noncoherent infrastructure

   - fix the return type of dma_set_max_seg_size (Niklas Söderlund)

   - move the dummy dma ops for not DMA capable devices from arm64 to
     common code (Robin Murphy)

   - ensure dma_alloc_coherent returns zeroed memory to avoid kernel
     data leaks through userspace. We already did this for most common
     architectures, but this ensures we do it everywhere.
     dma_zalloc_coherent has been deprecated and can hopefully be
     removed after -rc1 with a coccinelle script"

* tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping: (73 commits)
  dma-mapping: fix inverted logic in dma_supported
  dma-mapping: deprecate dma_zalloc_coherent
  dma-mapping: zero memory returned from dma_alloc_*
  sparc/iommu: fix -&gt;map_sg return value
  sparc/io-unit: fix -&gt;map_sg return value
  arm64: default to the direct mapping in get_arch_dma_ops
  PCI: Remove unused attr variable in pci_dma_configure
  ia64: only select ARCH_HAS_DMA_COHERENT_TO_PFN if swiotlb is enabled
  dma-mapping: bypass indirect calls for dma-direct
  vmd: use the proper dma_* APIs instead of direct methods calls
  dma-direct: merge swiotlb_dma_ops into the dma_direct code
  dma-direct: use dma_direct_map_page to implement dma_direct_map_sg
  dma-direct: improve addressability error reporting
  swiotlb: remove dma_mark_clean
  swiotlb: remove SWIOTLB_MAP_ERROR
  ACPI / scan: Refactor _CCA enforcement
  dma-mapping: factor out dummy DMA ops
  dma-mapping: always build the direct mapping code
  dma-mapping: move dma_cache_sync out of line
  dma-mapping: move various slow path functions out of line
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull DMA mapping updates from Christoph Hellwig:
 "A huge update this time, but a lot of that is just consolidating or
  removing code:

   - provide a common DMA_MAPPING_ERROR definition and avoid indirect
     calls for dma_map_* error checking

   - use direct calls for the DMA direct mapping case, avoiding huge
     retpoline overhead for high performance workloads

   - merge the swiotlb dma_map_ops into dma-direct

   - provide a generic remapping DMA consistent allocator for
     architectures that have devices that perform DMA that is not cache
     coherent. Based on the existing arm64 implementation and also used
     for csky now.

   - improve the dma-debug infrastructure, including dynamic allocation
     of entries (Robin Murphy)

   - default to providing chaining scatterlist everywhere, with opt-outs
     for the few architectures (alpha, parisc, most arm32 variants) that
     can't cope with it

   - misc sparc32 dma-related cleanups

   - remove the dma_mark_clean arch hook used by swiotlb on ia64 and
     replace it with the generic noncoherent infrastructure

   - fix the return type of dma_set_max_seg_size (Niklas Söderlund)

   - move the dummy dma ops for not DMA capable devices from arm64 to
     common code (Robin Murphy)

   - ensure dma_alloc_coherent returns zeroed memory to avoid kernel
     data leaks through userspace. We already did this for most common
     architectures, but this ensures we do it everywhere.
     dma_zalloc_coherent has been deprecated and can hopefully be
     removed after -rc1 with a coccinelle script"

* tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping: (73 commits)
  dma-mapping: fix inverted logic in dma_supported
  dma-mapping: deprecate dma_zalloc_coherent
  dma-mapping: zero memory returned from dma_alloc_*
  sparc/iommu: fix -&gt;map_sg return value
  sparc/io-unit: fix -&gt;map_sg return value
  arm64: default to the direct mapping in get_arch_dma_ops
  PCI: Remove unused attr variable in pci_dma_configure
  ia64: only select ARCH_HAS_DMA_COHERENT_TO_PFN if swiotlb is enabled
  dma-mapping: bypass indirect calls for dma-direct
  vmd: use the proper dma_* APIs instead of direct methods calls
  dma-direct: merge swiotlb_dma_ops into the dma_direct code
  dma-direct: use dma_direct_map_page to implement dma_direct_map_sg
  dma-direct: improve addressability error reporting
  swiotlb: remove dma_mark_clean
  swiotlb: remove SWIOTLB_MAP_ERROR
  ACPI / scan: Refactor _CCA enforcement
  dma-mapping: factor out dummy DMA ops
  dma-mapping: always build the direct mapping code
  dma-mapping: move dma_cache_sync out of line
  dma-mapping: move various slow path functions out of line
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'm68k-for-v4.21-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k</title>
<updated>2018-12-26T18:16:55+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2018-12-26T18:16:55+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=e0783bb42448a4f2a6bd405c890010a3950feada'/>
<id>e0783bb42448a4f2a6bd405c890010a3950feada</id>
<content type='text'>
Pull m68k updates from Geert Uytterhoeven:

 - Generate syscall headers

 - Small improvements and cleanups

 - defconfig updates

* tag 'm68k-for-v4.21-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Generate uapi header and syscall table header files
  m68k: Add system call table generation support
  m68k: Add __NR_syscalls along with NR_syscalls
  m68k/defconfig: Update defconfigs for v4.20-rc1
  m68k: Remove redundant 'default n' from Kconfig
  m68k: Unroll raw_outsb() loop
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull m68k updates from Geert Uytterhoeven:

 - Generate syscall headers

 - Small improvements and cleanups

 - defconfig updates

* tag 'm68k-for-v4.21-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Generate uapi header and syscall table header files
  m68k: Add system call table generation support
  m68k: Add __NR_syscalls along with NR_syscalls
  m68k/defconfig: Update defconfigs for v4.20-rc1
  m68k: Remove redundant 'default n' from Kconfig
  m68k: Unroll raw_outsb() loop
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'm68k-for-v4.20-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k</title>
<updated>2018-12-20T15:35:16+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2018-12-20T15:35:16+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=1d51b4b1d3f2db0d6d144175e31a84e472fbd99a'/>
<id>1d51b4b1d3f2db0d6d144175e31a84e472fbd99a</id>
<content type='text'>
Pull m68k fix from Geert Uytterhoeven:
 "Fix memblock-related crashes"

* tag 'm68k-for-v4.20-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Fix memblock-related crashes
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull m68k fix from Geert Uytterhoeven:
 "Fix memblock-related crashes"

* tag 'm68k-for-v4.20-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Fix memblock-related crashes
</pre>
</div>
</content>
</entry>
<entry>
<title>dma-mapping: zero memory returned from dma_alloc_*</title>
<updated>2018-12-20T07:13:52+00:00</updated>
<author>
<name>Christoph Hellwig</name>
<email>hch@lst.de</email>
</author>
<published>2018-12-14T08:00:40+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=518a2f1925c3165befbf06b75e07636549d92c1c'/>
<id>518a2f1925c3165befbf06b75e07636549d92c1c</id>
<content type='text'>
If we want to map memory from the DMA allocator to userspace it must be
zeroed at allocation time to prevent stale data leaks.   We already do
this on most common architectures, but some architectures don't do this
yet, fix them up, either by passing GFP_ZERO when we use the normal page
allocator or doing a manual memset otherwise.

Signed-off-by: Christoph Hellwig &lt;hch@lst.de&gt;
Acked-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt; [m68k]
Acked-by: Sam Ravnborg &lt;sam@ravnborg.org&gt; [sparc]
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
If we want to map memory from the DMA allocator to userspace it must be
zeroed at allocation time to prevent stale data leaks.   We already do
this on most common architectures, but some architectures don't do this
yet, fix them up, either by passing GFP_ZERO when we use the normal page
allocator or doing a manual memset otherwise.

Signed-off-by: Christoph Hellwig &lt;hch@lst.de&gt;
Acked-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt; [m68k]
Acked-by: Sam Ravnborg &lt;sam@ravnborg.org&gt; [sparc]
</pre>
</div>
</content>
</entry>
<entry>
<title>m68k: Fix memblock-related crashes</title>
<updated>2018-12-19T16:24:12+00:00</updated>
<author>
<name>Geert Uytterhoeven</name>
<email>geert@linux-m68k.org</email>
</author>
<published>2018-12-03T11:53:51+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=bed1369f51901b17108a4bb4f7210aab183bea42'/>
<id>bed1369f51901b17108a4bb4f7210aab183bea42</id>
<content type='text'>
When running the kernel in Fast RAM on Atari:

    Ignoring memory chunk at 0x0:0xe00000 before the first chunk
    ...
    Unable to handle kernel NULL pointer dereference at virtual address (ptrval)
    Oops: 00000000
    Modules linked in:
    PC: [&lt;0069dbac&gt;] free_all_bootmem+0x12c/0x186
    SR: 2714  SP: (ptrval)  a2: 005e3314
    d0: 00000000    d1: 0000000a    d2: 00000e00    d3: 00000000
    d4: 005e1fc0    d5: 0000001a    a0: 01000000    a1: 00000000
    Process swapper (pid: 0, task=(ptrval))
    Frame format=7 eff addr=00000736 ssw=0505 faddr=00000736
    wb 1 stat/addr/data: 0000 00000000 00000000
    wb 2 stat/addr/data: 0000 00000000 00000000
    wb 3 stat/addr/data: 0000 00000736 00000000
    push data: 00000000 00000000 00000000 00000000
    Stack from 005e1f84:
            00000000 0000000a 027d3260 006b5006 00000000 00000000 00000000 00000000
            0004f062 0003a220 0069e272 005e1ff8 0000054c 00000000 00e00000 00000000
            00000001 00693cd8 027d3260 0004f062 0003a220 00691be6 00000000 00000000
            00000000 00000000 00000000 00000000 006b5006 00000000 00690872
    Call Trace: [&lt;0004f062&gt;] printk+0x0/0x18
     [&lt;0003a220&gt;] parse_args+0x0/0x2d4
     [&lt;0069e272&gt;] memblock_virt_alloc_try_nid+0x0/0xa4
     [&lt;00693cd8&gt;] mem_init+0xa/0x5c
     [&lt;0004f062&gt;] printk+0x0/0x18
     [&lt;0003a220&gt;] parse_args+0x0/0x2d4
     [&lt;00691be6&gt;] start_kernel+0x1ca/0x462
     [&lt;00690872&gt;] _sinittext+0x872/0x11f8
    Code: 7a1a eaae 2270 6db0 0061 ef14 2f01 2f03 &lt;96a9&gt; 0736 2203 e589 d681 e78b d6a9 0732 2f03 2f40 0034 4eb9 0069 b8d0 260e 4fef
    Disabling lock debugging due to kernel taint
    Kernel panic - not syncing: Attempted to kill the idle task!

As the kernel must run in the memory chunk with the lowest address,
ST-RAM is ignored, and removed from the m68k_memory[] array.
However, it is not removed from memblock, causing a crash later.

More investigation shows that there are 3 places where memory chunks are
ignored, all after the calls to memblock_add() in m68k_parse_bootinfo(),
and thus causing crashes:
  1. On classic m68k CPUs with a MMU, paging_init() ignores all memory
     chunks below the first chunk, cfr. above,
  2. On Amigas equipped with a Zorro III bus, config_amiga() ignores all
     Zorro II memory,
  3. If CONFIG_SINGLE_MEMORY_CHUNK=y, m68k_parse_bootinfo() ignores all
     but the first memory chunk.

Fix this by moving the calls to memblock_add() from
m68k_parse_bootinfo() to paging_init(), after all ignored memory chunks
have been removed from m68k_memory[].

Reported-by: Andreas Schwab &lt;schwab@linux-m68k.org&gt;
Fixes: 1008a11590b966b4 ("m68k: switch to MEMBLOCK + NO_BOOTMEM")
Signed-off-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
When running the kernel in Fast RAM on Atari:

    Ignoring memory chunk at 0x0:0xe00000 before the first chunk
    ...
    Unable to handle kernel NULL pointer dereference at virtual address (ptrval)
    Oops: 00000000
    Modules linked in:
    PC: [&lt;0069dbac&gt;] free_all_bootmem+0x12c/0x186
    SR: 2714  SP: (ptrval)  a2: 005e3314
    d0: 00000000    d1: 0000000a    d2: 00000e00    d3: 00000000
    d4: 005e1fc0    d5: 0000001a    a0: 01000000    a1: 00000000
    Process swapper (pid: 0, task=(ptrval))
    Frame format=7 eff addr=00000736 ssw=0505 faddr=00000736
    wb 1 stat/addr/data: 0000 00000000 00000000
    wb 2 stat/addr/data: 0000 00000000 00000000
    wb 3 stat/addr/data: 0000 00000736 00000000
    push data: 00000000 00000000 00000000 00000000
    Stack from 005e1f84:
            00000000 0000000a 027d3260 006b5006 00000000 00000000 00000000 00000000
            0004f062 0003a220 0069e272 005e1ff8 0000054c 00000000 00e00000 00000000
            00000001 00693cd8 027d3260 0004f062 0003a220 00691be6 00000000 00000000
            00000000 00000000 00000000 00000000 006b5006 00000000 00690872
    Call Trace: [&lt;0004f062&gt;] printk+0x0/0x18
     [&lt;0003a220&gt;] parse_args+0x0/0x2d4
     [&lt;0069e272&gt;] memblock_virt_alloc_try_nid+0x0/0xa4
     [&lt;00693cd8&gt;] mem_init+0xa/0x5c
     [&lt;0004f062&gt;] printk+0x0/0x18
     [&lt;0003a220&gt;] parse_args+0x0/0x2d4
     [&lt;00691be6&gt;] start_kernel+0x1ca/0x462
     [&lt;00690872&gt;] _sinittext+0x872/0x11f8
    Code: 7a1a eaae 2270 6db0 0061 ef14 2f01 2f03 &lt;96a9&gt; 0736 2203 e589 d681 e78b d6a9 0732 2f03 2f40 0034 4eb9 0069 b8d0 260e 4fef
    Disabling lock debugging due to kernel taint
    Kernel panic - not syncing: Attempted to kill the idle task!

As the kernel must run in the memory chunk with the lowest address,
ST-RAM is ignored, and removed from the m68k_memory[] array.
However, it is not removed from memblock, causing a crash later.

More investigation shows that there are 3 places where memory chunks are
ignored, all after the calls to memblock_add() in m68k_parse_bootinfo(),
and thus causing crashes:
  1. On classic m68k CPUs with a MMU, paging_init() ignores all memory
     chunks below the first chunk, cfr. above,
  2. On Amigas equipped with a Zorro III bus, config_amiga() ignores all
     Zorro II memory,
  3. If CONFIG_SINGLE_MEMORY_CHUNK=y, m68k_parse_bootinfo() ignores all
     but the first memory chunk.

Fix this by moving the calls to memblock_add() from
m68k_parse_bootinfo() to paging_init(), after all ignored memory chunks
have been removed from m68k_memory[].

Reported-by: Andreas Schwab &lt;schwab@linux-m68k.org&gt;
Fixes: 1008a11590b966b4 ("m68k: switch to MEMBLOCK + NO_BOOTMEM")
Signed-off-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>m68k: Generate uapi header and syscall table header files</title>
<updated>2018-12-04T08:47:55+00:00</updated>
<author>
<name>Firoz Khan</name>
<email>firoz.khan@linaro.org</email>
</author>
<published>2018-11-13T06:00:29+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=005e13a96c0ed1437cb7f113d5d0f07ad9590962'/>
<id>005e13a96c0ed1437cb7f113d5d0f07ad9590962</id>
<content type='text'>
System call table generation script must be run to gener-
ate unistd_32.h and syscall_table.h files. This patch will
have changes which will invokes the script.

This patch will generate unistd_32.h and syscall_table.h
files by the syscall table generation script invoked by
m68k/Makefile and the generated files against the removed
files must be identical.

The generated uapi header file will be included in uapi/-
asm/unistd.h and generated system call table header file
will be included by kernel/syscalltable.S file.

Signed-off-by: Firoz Khan &lt;firoz.khan@linaro.org&gt;
Signed-off-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
System call table generation script must be run to gener-
ate unistd_32.h and syscall_table.h files. This patch will
have changes which will invokes the script.

This patch will generate unistd_32.h and syscall_table.h
files by the syscall table generation script invoked by
m68k/Makefile and the generated files against the removed
files must be identical.

The generated uapi header file will be included in uapi/-
asm/unistd.h and generated system call table header file
will be included by kernel/syscalltable.S file.

Signed-off-by: Firoz Khan &lt;firoz.khan@linaro.org&gt;
Signed-off-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>m68k: Add system call table generation support</title>
<updated>2018-12-04T08:47:53+00:00</updated>
<author>
<name>Firoz Khan</name>
<email>firoz.khan@linaro.org</email>
</author>
<published>2018-11-13T06:00:28+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=fd81414666cf6721cb29562094d4a874e8c096b2'/>
<id>fd81414666cf6721cb29562094d4a874e8c096b2</id>
<content type='text'>
The system call tables are in different format in all
architecture and it will be difficult to manually add,
modify or delete the syscall table entries in the res-
pective files. To make it easy by keeping a script and
which will generate the uapi header and syscall table
file. This change will also help to unify the implemen-
tation across all architectures.

The system call table generation script is added in
kernel/syscalls directory which contain the scripts to
generate both uapi header file and system call table
files. The syscall.tbl will be input for the scripts.

syscall.tbl contains the list of available system calls
along with system call number and corresponding entry
point. Add a new system call in this architecture will
be possible by adding new entry in the syscall.tbl file.

Adding a new table entry consisting of:
  	- System call number.
	- ABI.
	- System call name.
	- Entry point name.

syscallhdr.sh and syscalltbl.sh will generate uapi header
unistd_32.h and syscall_table.h files respectively. Both
.sh files will parse the content syscall.tbl to generate
the header and table files. unistd_32.h will be included
by uapi/asm/unistd.h and syscall_table.h is included by
kernel/syscall_table.S - the real system call table.

ARM, s390 and x86 architecuture does have similar support.
I leverage their implementation to come up with a generic
solution.

Signed-off-by: Firoz Khan &lt;firoz.khan@linaro.org&gt;
Signed-off-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The system call tables are in different format in all
architecture and it will be difficult to manually add,
modify or delete the syscall table entries in the res-
pective files. To make it easy by keeping a script and
which will generate the uapi header and syscall table
file. This change will also help to unify the implemen-
tation across all architectures.

The system call table generation script is added in
kernel/syscalls directory which contain the scripts to
generate both uapi header file and system call table
files. The syscall.tbl will be input for the scripts.

syscall.tbl contains the list of available system calls
along with system call number and corresponding entry
point. Add a new system call in this architecture will
be possible by adding new entry in the syscall.tbl file.

Adding a new table entry consisting of:
  	- System call number.
	- ABI.
	- System call name.
	- Entry point name.

syscallhdr.sh and syscalltbl.sh will generate uapi header
unistd_32.h and syscall_table.h files respectively. Both
.sh files will parse the content syscall.tbl to generate
the header and table files. unistd_32.h will be included
by uapi/asm/unistd.h and syscall_table.h is included by
kernel/syscall_table.S - the real system call table.

ARM, s390 and x86 architecuture does have similar support.
I leverage their implementation to come up with a generic
solution.

Signed-off-by: Firoz Khan &lt;firoz.khan@linaro.org&gt;
Signed-off-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>mm: remove include/linux/bootmem.h</title>
<updated>2018-10-31T15:54:16+00:00</updated>
<author>
<name>Mike Rapoport</name>
<email>rppt@linux.vnet.ibm.com</email>
</author>
<published>2018-10-30T22:09:49+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=57c8a661d95dff48dd9c2f2496139082bbaf241a'/>
<id>57c8a661d95dff48dd9c2f2496139082bbaf241a</id>
<content type='text'>
Move remaining definitions and declarations from include/linux/bootmem.h
into include/linux/memblock.h and remove the redundant header.

The includes were replaced with the semantic patch below and then
semi-automated removal of duplicated '#include &lt;linux/memblock.h&gt;

@@
@@
- #include &lt;linux/bootmem.h&gt;
+ #include &lt;linux/memblock.h&gt;

[sfr@canb.auug.org.au: dma-direct: fix up for the removal of linux/bootmem.h]
  Link: http://lkml.kernel.org/r/20181002185342.133d1680@canb.auug.org.au
[sfr@canb.auug.org.au: powerpc: fix up for removal of linux/bootmem.h]
  Link: http://lkml.kernel.org/r/20181005161406.73ef8727@canb.auug.org.au
[sfr@canb.auug.org.au: x86/kaslr, ACPI/NUMA: fix for linux/bootmem.h removal]
  Link: http://lkml.kernel.org/r/20181008190341.5e396491@canb.auug.org.au
Link: http://lkml.kernel.org/r/1536927045-23536-30-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport &lt;rppt@linux.vnet.ibm.com&gt;
Signed-off-by: Stephen Rothwell &lt;sfr@canb.auug.org.au&gt;
Acked-by: Michal Hocko &lt;mhocko@suse.com&gt;
Cc: Catalin Marinas &lt;catalin.marinas@arm.com&gt;
Cc: Chris Zankel &lt;chris@zankel.net&gt;
Cc: "David S. Miller" &lt;davem@davemloft.net&gt;
Cc: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
Cc: Greentime Hu &lt;green.hu@gmail.com&gt;
Cc: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Cc: Guan Xuetao &lt;gxt@pku.edu.cn&gt;
Cc: Ingo Molnar &lt;mingo@redhat.com&gt;
Cc: "James E.J. Bottomley" &lt;jejb@parisc-linux.org&gt;
Cc: Jonas Bonn &lt;jonas@southpole.se&gt;
Cc: Jonathan Corbet &lt;corbet@lwn.net&gt;
Cc: Ley Foon Tan &lt;lftan@altera.com&gt;
Cc: Mark Salter &lt;msalter@redhat.com&gt;
Cc: Martin Schwidefsky &lt;schwidefsky@de.ibm.com&gt;
Cc: Matt Turner &lt;mattst88@gmail.com&gt;
Cc: Michael Ellerman &lt;mpe@ellerman.id.au&gt;
Cc: Michal Simek &lt;monstr@monstr.eu&gt;
Cc: Palmer Dabbelt &lt;palmer@sifive.com&gt;
Cc: Paul Burton &lt;paul.burton@mips.com&gt;
Cc: Richard Kuo &lt;rkuo@codeaurora.org&gt;
Cc: Richard Weinberger &lt;richard@nod.at&gt;
Cc: Rich Felker &lt;dalias@libc.org&gt;
Cc: Russell King &lt;linux@armlinux.org.uk&gt;
Cc: Serge Semin &lt;fancer.lancer@gmail.com&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: Tony Luck &lt;tony.luck@intel.com&gt;
Cc: Vineet Gupta &lt;vgupta@synopsys.com&gt;
Cc: Yoshinori Sato &lt;ysato@users.sourceforge.jp&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Move remaining definitions and declarations from include/linux/bootmem.h
into include/linux/memblock.h and remove the redundant header.

The includes were replaced with the semantic patch below and then
semi-automated removal of duplicated '#include &lt;linux/memblock.h&gt;

@@
@@
- #include &lt;linux/bootmem.h&gt;
+ #include &lt;linux/memblock.h&gt;

[sfr@canb.auug.org.au: dma-direct: fix up for the removal of linux/bootmem.h]
  Link: http://lkml.kernel.org/r/20181002185342.133d1680@canb.auug.org.au
[sfr@canb.auug.org.au: powerpc: fix up for removal of linux/bootmem.h]
  Link: http://lkml.kernel.org/r/20181005161406.73ef8727@canb.auug.org.au
[sfr@canb.auug.org.au: x86/kaslr, ACPI/NUMA: fix for linux/bootmem.h removal]
  Link: http://lkml.kernel.org/r/20181008190341.5e396491@canb.auug.org.au
Link: http://lkml.kernel.org/r/1536927045-23536-30-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport &lt;rppt@linux.vnet.ibm.com&gt;
Signed-off-by: Stephen Rothwell &lt;sfr@canb.auug.org.au&gt;
Acked-by: Michal Hocko &lt;mhocko@suse.com&gt;
Cc: Catalin Marinas &lt;catalin.marinas@arm.com&gt;
Cc: Chris Zankel &lt;chris@zankel.net&gt;
Cc: "David S. Miller" &lt;davem@davemloft.net&gt;
Cc: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
Cc: Greentime Hu &lt;green.hu@gmail.com&gt;
Cc: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Cc: Guan Xuetao &lt;gxt@pku.edu.cn&gt;
Cc: Ingo Molnar &lt;mingo@redhat.com&gt;
Cc: "James E.J. Bottomley" &lt;jejb@parisc-linux.org&gt;
Cc: Jonas Bonn &lt;jonas@southpole.se&gt;
Cc: Jonathan Corbet &lt;corbet@lwn.net&gt;
Cc: Ley Foon Tan &lt;lftan@altera.com&gt;
Cc: Mark Salter &lt;msalter@redhat.com&gt;
Cc: Martin Schwidefsky &lt;schwidefsky@de.ibm.com&gt;
Cc: Matt Turner &lt;mattst88@gmail.com&gt;
Cc: Michael Ellerman &lt;mpe@ellerman.id.au&gt;
Cc: Michal Simek &lt;monstr@monstr.eu&gt;
Cc: Palmer Dabbelt &lt;palmer@sifive.com&gt;
Cc: Paul Burton &lt;paul.burton@mips.com&gt;
Cc: Richard Kuo &lt;rkuo@codeaurora.org&gt;
Cc: Richard Weinberger &lt;richard@nod.at&gt;
Cc: Rich Felker &lt;dalias@libc.org&gt;
Cc: Russell King &lt;linux@armlinux.org.uk&gt;
Cc: Serge Semin &lt;fancer.lancer@gmail.com&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: Tony Luck &lt;tony.luck@intel.com&gt;
Cc: Vineet Gupta &lt;vgupta@synopsys.com&gt;
Cc: Yoshinori Sato &lt;ysato@users.sourceforge.jp&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu</title>
<updated>2018-10-29T16:04:26+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2018-10-29T16:04:26+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=673c790e72822ee433931ea701e4fceef75a0eac'/>
<id>673c790e72822ee433931ea701e4fceef75a0eac</id>
<content type='text'>
Pull m68k nommu fix from Greg Ungerer:
 "Only a single change to fix an out of bounds array access when parsing
  boot command line"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k: fix command-line parsing when passed from u-boot
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull m68k nommu fix from Greg Ungerer:
 "Only a single change to fix an out of bounds array access when parsing
  boot command line"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k: fix command-line parsing when passed from u-boot
</pre>
</div>
</content>
</entry>
</feed>
